If you haven't already maybe click on this link and scroll through the pages that come up and see if you get some info you are looking for
https://forum.audiogon.com/search/index?utf8=%E2%9C%93&query=mad+scientist+contact+enhancer
https://forum.audiogon.com/search/index?utf8=%E2%9C%93&query=mad+scientist+contact+enhancer